Arnold munzingee



UNITED STATES PATENT OFFICEo ARNOLD MUNZINGER, OF'OLTEN, SOLOTHURN, SWITZERLAND.

DRIER.4

SPECIFICATION forming part of Letters Patent No. 317,172, dated May 5, 1885. Application filed September 22, 1884. (No model.)

.To a/ZZ wwm it may concerm' Be it known that I, ARNoLD MUNZINGER, a citizen of the Republic of Switzerland, residing at Olten, of Solothurn, Switzerland, have invented certain new and useful Improvements in a new Apparatus for Drying VooLCotton, Cellulose,VVood Pulp, and Similar Materials, of which the following is a specification.

Figure 1 is a vertical transverse sectional vlew of my improved drying apparatus. Fig. 2 is a plan view of the same with the top yoke removed, so as to expose the interior construction more fully. Fig. 31'sahorizontal sectional view taken on the line x x in Fig. 1. Fig. 4=is a horizontal sectional view taken on the line y y in Fig; 1. Fig'. 5 is a Vertical sectional view illustrating a modification in the construction of my invention, and Fig. 6 is a plan view of the same.

The same letters refer to the same parts in all the figures.

This invention relates to an improved device or apparatus for drying materials of all kinds by subjecting the same, within a suitable casing, to a current of heated air; and it has for its object to provide a device in which the material to be dried shall be automatically and ntermittingly conveyed from the upper to the lower portion of such casing while continually exposed to the drying influences of a heated-air current, which is admitted at the bottom of the casing.

With these ends in view the invention consists in the improved construction and ar-` rangement of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings hereto annexed, A desig-` ries of disks, E E, each of which has a seg-l mental opening, F, comprising about onesixth (more or less) of the circumference of the disks in which the said openings are successively spirally arrauged, and each of the said disks is provided, as clearly shown in Fig. 2 of the drawings, with a perforated section, G, coinciding` or registering with the opening in the disk next above.

Secured to the inner wall of thecasing below the disks E E is a spiral series of segmental perforated plates or steps, H H ,which which is formed an annular casing, K, having;`` a pipe, L, through which a current of heated` air may be admitted. The casing K has an` opening, M, through which the air may pass into the main casing A, and under the said opening is arranged a deflector, N, overwhich` is placed an inverted-V-shaped Shield of perforated metal or wire-gauze, as shown `at O, by which the material to be dried is prevented from clogging the air opening or entrance.

The body or enlargement I of the shaft Cis provided with a seriesof radial arms or sera-p;

ers, P P, registering with the disks E and plates or, shelves H, and adapted to scrape or push the contents of the same onto the plate or shelf next below, or from the lowermost shelf into the funnel-shaped bottom of the casing. These scrapers are so arranged with relationV to the shelves H and to' the openings in the disks E that each scraper shallralways be somewhat in rear of the one next below, and not begin its work until the 4one next below has fully completed its work. This is easily accomplished by properly regulating` the distance between the scrapers upon 'the periphery of the shaft. W

The lower end of the shaft is provided with a vertically-sliding sleeve, Q, having a screw, R, and provided at its extreme lower end with a bevel-wheel, S, receiving` motion from the driving-pinion T. The latter also communicates motion to a bevel-wheel, U, upon the shaft O, which' is thus operated. The sleevc sleeve Q is also provided with a bell-shaped diaphragm, X, which, when the said sleeve is raised, serves to close the opening at the lower end of the casing. The sleeveQis connected with a lever, Y, having at its outer end a weight, Z, which serves to counterbalance the weight of the said sleeve and its attachments;

From the foregoing description, taken in connection with the drawings hereto annexed, the operation and advantages of this inventlon will bc readily understood. The material which is to be dried is conveyed in any suitable manner into the upper end of the casing, whence the scrapers convey it from step to step to the bottom, where it is collected, the opening at the bottom of the casing being normally closed by the diaphragm X. By Operating the lever XV the sleeve Q may be lowered, thus opening the botton'i of the casing and throwing the bevel-wheel S into cngagement with the pinion T. The sleeve Q, with its screw R, is thus caused to revolve, thereby removing the contents of dried material at the bottom of the casing and making room for that which follows.

The modification of my invention (shown in Figs. 5 and 6 of the drawings) consists in omitting the disks E at the top of the' casing and the guards N O of the air-entrance at the bottom of the same, and substituting for the latter an annular beveled ring or deflector, A', which serves practically the same purpose. I would have it understood that other changes of construction may be madeuthus, for instance7 the disks and steps might be secured upon the aXle and the arms or scrapers upon the casing; or the latter might be made to revolve and the axle suffered to remain stationary, or caused to revolve in an opposite direetion or at a different rate of speed; and I reserve to myself the right to these and other modifications,which may be resorted to without departing from the spirit of my invention.

I am aware that it is not broadly new to have a series of spirally-arranged steps secured one above the other in a drying-cylinder having an axial shaft provided with laterally-projectin g arms traveling over the faces of the said steps, and I do not wish to claim such construction, broadly; but

I clain1- l. In a drying apparatus, the combination of a cylindrical casing provided at its upper end With disks having segmental openings, and perforated Sections adjoining the said openings, and a spirally-arranged series of perforated steps or shelves arranged below the said disks, with the revolving arms or scrapers, substantially as and for the purpose herein set forth.

2. In a drying apparatus, the combination of a cylindrical casing, a spirally-arranged series of perforated steps or shelves, revolving arms or scrapers, an air-entrance at the bottom ofl said casing, a V-shaped deflector, and an inverted-V-shaped perforated shield or guard for the same, substantially as and for the purpose set forth.

8. The combination of a cylindrical casing having an open hopper-shaped bottom, a spirally-arranged series of steps Within the said casing7 a revolving shaft having radial arms or scrapers,a sleeve sliding upon the lower end of the said shaft and having a screw and a bell-shaped diaphragm, mechanism for adjusting the said sleeve, and suitable Operating mechanism, substantially as and for the purpose set forth.

In testimony whereof I hereunto sign my name, in the presence of two subscribing witnesses, this 9th day of August, 1884.

ARNOLD MUNZINGER.

Witnesses ED. EGLI, EMIL BLUM. 

